20074497320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{134873}}^1$

素因数の和:135006

約数の個数: 48

約数和(自身を含む): 45920550780

約数和(自身を除く): 25846053460

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3721, 7442, 14884, 18605, 29768, 37210, 74420, 134873, 148840, 269746, 539492, 674365, 1078984, 1348730, 2697460, 5394920, 8227253, 16454506, 32909012, 41136265, 65818024, 82272530, 164545060, 329090120, 501862433, 1003724866, 2007449732, 2509312165, 4014899464, 5018624330, 10037248660, 20074497320]

約数ペア:

[(1, 20074497320), (2, 10037248660), (4, 5018624330), (5, 4014899464), (8, 2509312165), (10, 2007449732), (20, 1003724866), (40, 501862433), (61, 329090120), (122, 164545060), (244, 82272530), (305, 65818024), (488, 41136265), (610, 32909012), (1220, 16454506), (2440, 8227253), (3721, 5394920), (7442, 2697460), (14884, 1348730), (18605, 1078984), (29768, 674365), (37210, 539492), (74420, 269746), (134873, 148840)]